Media type: E-Article Title: Heterogeneous treatment effects in groups Contributor: Riener, Gerhard; Wiederhold, Simon Published: Elsevier BV, 2013 Published in: Economics Letters, 120 (2013) 3, Seite 408-412 Language: English DOI: 10.1016/j.econlet.2013.05.016 ISSN: 0165-1765 Keywords: Economics and Econometrics ; Finance Origination: Footnote: